Theme does not respect spaces between paragraphs in pages

The theme’s style sheet uses the reset method to set all margins on the <p> tag (and many others) to 0 (this is common practice). So you would need to add a style declaration into your style sheet to add the top and bottom margin back in for the <p> tag.

For example: you could add this to your style sheet after the reset.

p {
 margin: 10px 0;
}

This will add a top and bottom margin of 10px. You can change this to whatever value you like.

You could also set the margins individually.

p {
  margin-top: 10px;
  margin-right: 0;
  margin-bottom: 10px;
  margin-left: 0;
}
.added p {
  margin: 0;
}

Edit:
Included extra css to fix “Added by”